Now to install this deb package fire following command:sudo dpkg -i google-earth-stable_current_i386.deb

( Alternatively you can also download packages from here. And manually install them.)

Now you are ready to face ugly font problem. :) Now you will be able to find Google earth in your application list. Open it and you'll probably find ugly font problem. Don't be panic. Just restart you system and it the problem will be solved thanks to first command we fired...:D